The keyed groove with lock pin on the shaft is more meant for a sheering point when equipment gets over-torqued. Better to sheer the pin than to bend the shaft out of alignment.
If the lock pin sheers off the cotter pin keeps the blade on the shaft and the blade assembly just free spins.----------------------------- Go Huskers![ Parent ]
Should have read: "You can fashion a hole for one on the end of the shaft so the hub doesn't leave the shaft."----------------------------- Go Huskers![ Parent ]
I agree that used as you suggest it gives you a back up to hold the thing in place. As long as you get it down as soon as it is seen to be running on no load you have a chance of saving the situation if not the shaft.
Flux[ Parent ]